Power-hammer.



No. 650,")3. Patented May 22, I900.

a. WALTER.

POWER HAMMER.

(Application filed June 30, 1899.\

(No Model.)

Inventpr waiter,

SJ 59. W 1 a i ttorney I gob/W4 Witnesses NITED TATES ATENT FF E- POWER-HAM MER.

SPECIFICATION forming part of Letters Patent No. 650,103, dated May 22, 1 900. Application filed June so, 1899. Serial No. 722,402. (No model.)

To all whom it may concern:

Be it known that I, GEORG LEONHARD WAL- TER, machinist, a subject of the Emperor of Germany, and a resident of Schwabach, in the Kingdom of Bavaria and Empire of Germany, have invented a new and useful Improvement in Power-Hammers, (for which application for patent has been filed in Germany, N0. W. 14,996, 1/49, dated March 18, 1899,) of which the following is a specification.

This invention relates topowerhammers', and has for its object to provide a machine in which the hammer-head is notdirectlydriven, but has a certain amount'of play, and in which the stroke of the hammer-head may be adjustable during the operation of the machine.

The invention is illustrated in the accompanying drawings, in which-:-

Figure 1 represents in front elevation a powerhammer constructed in accordance with the invention, whileFig. 2 is a plan cor responding thereto; and Fig. 3 is a side view corresponding thereto, while Figs. 4 and 5 are sectional elevations of alternative forms of hammer-head that may be employed.

The invention consists of a power-hammer in which the movement of the ham mer-head is caused and regulated by means of straps, cords,'or chains whose extremities are affixed to the frame and are arranged transversely to the direction of. movement of the hammerhead, the movement being caused upon the reciprocation of the main sliding frame,within which the-hammer-head is fitted so as to slide in the same direction. The main sliding frame is reciprocated bysuch means as a crank and connecting-rod and has a positivelydetermined stroke.

In carrying the invention into effect, as illustrated in the accompanying drawings, the main sliding frame a is fitted so as to slide within grooves provided in the machine-frame b, and its reciprocation is effected by means of a crank-disk cand connecting-rod d. Straps e and f are fitted to the machine-frame, preferably upon pulleys g-h and 1' 7a, which are capable of rotation and are so arranged as to be transverse to the direction of movement of the main sliding frame.

so 11 is mounted within themain sliding frame a in a V groove and has provided thereupon a boss or neck, whichlies between the straps e The hammer-head and f. Pulleys land m and n and 0 aremounted upon the main sliding frame aandbear upon the straps e and f in such a manner that'- upon the reciprocation of the main sliding frame a the respective straps e and f are alternately tightened, so as to impel the hammerupon the hammer-head p two bosses or abut-' ments, such as q and r, Fig.' 5, may be provided.

The straps may of course be replacedby ropes or chains and the pulleys g and h andz' and k be fixed abutments. Further, instead ofthe hammer-headv and main sliding frame being operated in a vertical plane it is ob,- vious that they may be employed so as to re-' ciprocate horizontally, and any incide ntal alterations in the construction of the machine may be made in such a case without departing from the essential features of the invention. 1

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

1. In a power-hammer the combination of a main sliding frame fitted so as to slide within the machinedtrame, a hammer-head fitted so as to slide in the same direction within the sliding frame, straps or their equivalents arranged transversely thereto,the ends of which are fixed to the machine-frame,pulleys mounted upon the sliding frame and bearing upon said straps, and a boss or neck provided upon the hammer-head and lying between said straps, substantially as and for the purpose hereinbefore set forth.

2. In a power-hammer the combination of a main sliding frame fitted so as to slide Within the machine-frame, a hammer-head fitted so as to slide in the same direction within the sliding frame, straps or their equivalents arranged transversely thereto, the'ends of which are secured to pulleys mounted upon the ma chine-frame and capable of slight rotation for the purposeof adjusting thelength of said or neck provided upon the ham mer-head and lying between" said straps, substantiallyv as; and fo'rthe purpose 'hereinbefore set forth. l

straps, pulleys fmounted upon the sliding frame and bearing upon said straps,an' d a boss 'frame, said flexible connections having bearings on said main slide.

4. In a'power-hammer, the combination of a hammer-head, a main slide fitted so' as to slide within the stationary machine-frame, .11 cans for reciprocating said slide, a hammerhead fitted to'slide in the same direction upon thesaid slide, flexible connections between said head and said stationary machine-frame, said flexible connections having bearings on said main slide, and means for adjusting the tension of said connections.

'In testimony whereof I have hereunto sub- 7 scribed my name this 16th day'of June, 1899.

Witnesses AUGUST OHNIMUS, CRIs'rIAN LANG.

GEORGI momma) WALTER. a s] 

